Connection Information

Table B-3 shows the names of the line modules and I/O modules that you can combine to form the different module assemblies. This table also provides cabling specifications for the I/O modules.

Table B-3 Connection information for module assemblies 

Assembly Name and Capability	Line Module Label	I/O Module Label	No. of Ports	Connector Type	Cabling Specifications
CE1	CE1	CE1 FULL I/O	20	RJ-48C,120 ohm BNC, 75 ohm via a balun panel that connects to the I/O module	Use shielded cables to maintain EMC compliance. The transmitted signal complies with ITUT G.703: Physical/electrical characteristics of hierarchical digital interfaces (November 2001) for cable lengths up to 450 m (492 yards).
cOC3/STM1 multimode	cOCx/STMx F0	cOC3 STM1 F0 I/O MULTI MODE	4	SC full duplex	Tx power: >    min: -19 dBm >    max: -14 dBm Center wavelength: 1310 nm Rx input power: >    min: -30 dBm >    max: -14 dBm Rated for 2 km (1.2 miles) over 62.5-micron core cable with an optical loss of 0-9 dB or 50-micron core cable with an optical loss of 7 dB
cOC3/STM1 single mode intermediate reach	cOCx/STMx F0	cOC3 STM1 F0 I/O SINGLE MODE	4	SC full duplex	Tx power: >    min: -15 dBm >    max: -8 dBm Center wavelength: 1310 nm Rx input power: >    min: -31 dBm >    max: -8 dBm Rated for 15 km (9.3 miles) of 9-micron core cable
cOC3/STM1 single mode long reach	cOCx/STMx F0	cOC3 STM1 F0 I/O LONG HAUL	4	SC full duplex	Tx power: >    min: -5.0 dBm >    max: 0 dBm Center wavelength: 1310 nm Rx input power: >    min: -34 dBm >    max: -7 dBm Fiber type: 9-micron core Rated for 40 km (24.8 miles) of 9-micron core cable
cOC12/STM4 multimode without SONET APS redundancy	cOCx/STMx F0	cOC12 STM4 F0 I/O MULTI MODE	1	SC full duplex	Tx power: >    min: -19 dBm >    max: -14 dBm Center wavelength: 1310 nm Rx input power: >    min: -30 dBm >    max: -14 dBm Rated for 2 km (1.2 miles) over 62.5-micron core cable with an optical loss of 0-9 dB or 50-micron core cable with an optical loss of 7 dB
cOC12/STM4 multimode with SONET APS redundancy	cOCx/STMx F0	COC12 F0 APS MULTI MODE	1 active 1 redundant	SC full duplex	Tx power: >    min: -19 dBm >    max: -14 dBm Center wavelength: 1310 nm Rx input power: >    min: -30 dBm >    max: -14 dBm Rated for 2 km (1.2 miles) over 62.5-micron core cable with an optical loss of 0-9 dB or 50-micron core cable with an optical loss of 7 dB
cOC12/STM4 single mode intermediate reach	cOCx/STMx F0	cOC12 STM4 F0 I/O SINGLE MODE	1	SC full duplex	Tx power: >    min: -15 dBm >    max: -8 dBm Center wavelength: 1310 nm Rx input power: >    min: -31 dBm >    max: -8 dBm Rated for 15 km (9.3 miles) of 9-micron core cable
cOC12/STM4 single mode long reach	cOCx/STMx F0	cOC12 STM4 F0 I/O LONG HAUL	1	SC full duplex	Tx power: >    min: -5.0 dBm >    max: 0 dBm Center wavelength: 1310 nm Rx input power: >    min: -34 dBm >    max: -7 dBm Fiber type: 9-micron core Rated for 40 km (24.8 miles) of 9-micron core cable
CT1	CT1	CT1 FULL I/O	24	RJ-48C 100 ohm	Use shielded cables to maintain EMC compliance. The line interface unit supports multiple line build-outs. Signal strength is software controlled. The transmitted signal complies with ANSI T1.102-1993: Digital Hierarchy - Electrical Interfaces (1999) for cable lengths up to 201 m (660 feet).
CT3	CT3	CT3/T3 I/O	3	BNC 75 ohm	The line interface unit supports two line build-outs: >    0-68.5 m (0-225 feet) >    69-137 m (226-450 feet) Signal strength is software controlled. The transmitted signal complies with ANSI T1.102-1993: Digital Hierarchy - Electrical Interfaces (1999) for cable lengths up to 201 m (660 feet).
CT3 12 F0	CT3/T3-F0	CT3/T3 12 I/O	12	BT43 SMB (cable that adapts to 75-ohm BNC is available)	The line interface unit supports two line build-outs: >    0-68.5 m (0-225 feet) >    69-137 m (226-450 feet) Signal strength is software controlled. The transmitted signal complies with ANSI T1.102-1993: Digital Hierarchy - Electrical Interfaces (1999) for cable lengths up to 201 m (660 feet).
E3 ATM	E3 ATM	E3 I/O	3	BNC 75 ohm	The transmitted signal complies with ITUT G.703: Physical/electrical characteristics of hierarchical digital interfaces (November 2001) for cable lengths from 0-137 m (0-450 feet).
E3 FRAME (3 ports)	E3 FRAME	E3 I/O	3	BNC 75 ohm	The transmitted signal complies with ITUT G.703: Physical/electrical characteristics of hierarchical digital interfaces (November 2001) for cable lengths from 0-137 m (0-450 feet).
E3 FRAME (12 ports)	COCX-F3	E3-12 FRAME I/O	12	BT43 SMB (cable that adapts to 75-ohm BNC is available)	The transmitted signal complies with ITUT G.703: Physical/electrical characteristics of hierarchical digital interfaces (November 2001) for cable lengths from 0-137 m (0-450 feet).
FE-2	FE-2	FE-2 I/O	2	RJ-45	For 10-Mbps operation, use CAT 3, 4, or 5 UTP cable. For 100-Mbps operation, use only CAT 5 UTP cable. The transmitted signal complies with IEEE 802.3/802.3u for cable lengths up to 100 m (328 feet).
FE-8	GE/FE	FE-8 I/O	8	RJ-45	For 10-Mbps operation, use CAT 3, 4, or 5 UTP cable. For 100-Mbps operation, use only CAT 5 UTP cable. The transmitted signal complies with IEEE 802.3/802.3u for cable lengths up to 100 m (328 feet).
GE 1000 Base-SX	GE/FE	GE I/O SFP1	1 active 1 redundant	LC full duplex	Tx power >    min: -9.5 dBm >    max: -4 dBm Center wavelength: 850 nm Rx input power >    min: -17 dBm >    max: -3 dBm Rated for 275 m (300 yards) over 62.5-micron core cable Rated for 550 m (601 yards) over 50-micron core cable
GE 1000 Base-LH	GE/FE	GE I/O SFPa	1 active 1 redundant	LC full duplex	Tx power >    min: -9.5 dBm >    max: -3 dBm Center wavelength: 1300 nm Rx input power >    min: -20 dBm >    max: -3 dBm Rated for 10 km (6.2 miles) over 10-micron core cable
GE 1000 Base-ZX	GE/FE	GE I/O SFPa	1 active 1 redundant	LC full duplex	Tx power >    min: -3 dBm >    max: 2 dBm Center wavelength: 1550 nm Rx input power >    min: -23 dBm >    max: -3 dBm Rated for 70 km (43.4 miles) over 10-micron core cable
GE multimode2	GE/FE	GE I/O MULTI MODE	1 active 1 redundant	SC full duplex	Tx power >    min: -9.5 dBm >    max: -4 dBm Center wavelength: 850 nm Rx input power >    min: -17 dBm >    max: -3 dBm Rated for 275 m (300 yards) over 62.5-micron core cable Rated for 550 m (601 yards) over 50-micron core cable
GE single modeb	GE/FE	GE I/O SINGLE MODE	1 active 1 redundant	SC full duplex	Tx power >    min: -11 dBm >    max: -3 dBm Center wavelength: 1300 nm Rx input power >    min: -20 dBm >    max: -3 dBm Rated for 550 m (601 yards) over 62.5-micron core or 50-micron core MM fiber Rated for 5 km (3.1 miles) over 10-micron core cable
HSSI	HSSI-3F	HSSI-3	3	Standard HSSI connector: 2-row, 50-pin, receptacle header with rails and latch blocks	50 feet (15.24 m) maximum cable length
IPSec Service	IPSEC SERVICE	No I/O module	N/A	N/A	N/A
OC3 (dual port) multimode	OC3	OC3 I/O MULTI MODE	2	SC full duplex	Tx power: >    min: -19 dBm >    max: -14 dBm Center wavelength: 1310 nm Rx input power: >    min: -30 dBm >    max: -14 dBm Rated for 2 km (1.2 miles) over 62.5-micron core cable with an optical loss of 0-9 dB or 50-micron core cable with an optical loss of 7 dB
OC3 (dual port) single mode	OC3	OC3 I/O SINGLE MODE	2	SC full duplex	Tx power: >    min: -15 dBm >    max: -8 dBm Center wavelength: 1310 nm Rx input power: >    min: -31 dBm >    max: -8 dBm Rated for 15 km (9.3 miles) of 9-micron core cable
OC3/STM1 ATM multimode	OCx/STMx ATM	OC3-4 I/O MULTI MODE	4	SC full duplex	Tx power: >    min: -19 dBm >    max: -14 dBm Center wavelength: 1310 nm Rx input power: >    min: -30 dBm >    max: -14 dBm Rated for 2 km (1.2 miles) over 62.5-micron core cable with an optical loss of 0-9 dB or 50-micron core cable with an optical loss of 7 dB
OC3/STM1 ATM single mode, intermediate reach	OCx/STMx ATM	OC3-4 I/O SINGLE MODE	4	SC full duplex	Tx power: >    min: -15 dBm >    max: -8 dBm Center wavelength: 1310 nm Rx input power: >    min: -31 dBm >    max: -8 dBm Rated for 15 km (9.3 miles) of 9-micron core cable
OC3/STM1 ATM single mode, long reach	OCx/STMx ATM	OC3-4 I/O LONG HAUL	4	SC full duplex	Tx power: >    min: -5.0 dBm >    max: 0 dBm Center wavelength: 1310 nm Rx input power: >    min: -34 dBm >    max: -7 dBm Rated for 40 km (24.8 miles) of 9-micron core cable
OC3/STM1 POS multimode	OCx/STMx POS	OC3-4 I/O MULTI MODE	4	SC full duplex	Tx power: >    min: -19 dBm >    max: -14 dBm Center wavelength: 1310 nm Rx input power: >    min: -30 dBm >    max: -14 dBm Rated for 2 km (1.2 miles) over 62.5-micron core cable with an optical loss of 0-9 dB or 50-micron core cable with an optical loss of 7 dB
OC3/STM1 POS single mode, intermediate reach	OCx/STMx POS	OC3-4 I/O SINGLE MODE	4	SC full duplex	Tx power: >    min: -15 dBm >    max: -8 dBm Center wavelength: 1310 nm Rx input power: >    min: -31 dBm >    max: -8 dBm Rated for 15 km (9.3 miles) of 9-micron core cable
OC3/STM1 POS single mode, long reach	OCx/STMx POS	OC3-4 I/O LONG HAUL	4	SC full duplex	Tx power: >    min: -5.0 dBm >    max: 0 dBm Center wavelength: 1310 nm Rx input power: >    min: -34 dBm >    max: -7 dBm Fiber type: 9 micron core Rated for 40 km (24.8 miles) of 9-micron core cable
OC12/STM4 ATM multimode without SONET APS redundancy	OCx/STMx ATM	OC12 STM4 I/O MULTI MODE	1	SC full duplex	Tx power: >    min: -19 dBm >    max: -14 dBm Center wavelength: 1310 nm Rx input power: >    min: -30 dBm >    max: -14 dBm Rated for 2 km (1.2 miles) over 62.5-micron core cable with an optical loss of 0-9 dB or 50-micron core cable with an optical loss of 7 dB
OC12/STM4 ATM multimode with SONET APS redundancy	OCx/STMx ATM	OC12 STM4 APS MULTI MODE	1 active 1 redundant	SC full duplex	Tx power: >    min: -19 dBm >    max: -14 dBm Center wavelength: 1310 nm Rx input power: >    min: -30 dBm >    max: -14 dBm Rated for 2 km (1.2 miles) over 62.5-micron core cable with an optical loss of 0-9 dB or 50-micron core cable with an optical loss of 7 dB
OC12/STM4 ATM single mode, intermediate reach without SONET APS redundancy	OCx/STMx ATM	OC12 STM4 I/O SINGLE MODE	1	SC full duplex	Tx power: >    min: -15 dBm >    max: -8 dBm Center wavelength: 1310 nm Rx input power: >    min: -31 dBm >    max: -8 dBm Rated for 15 km (9.3 miles) of 9-micron core cable
OC12/STM4 ATM single mode, intermediate reach with SONET APS redundancy	OCx/STMx ATM	OC12 STM4 APS SINGLE MODE	1 active 1 redundant	SC full duplex	Tx power: >    min: -15 dBm >    max: -8 dBm Center wavelength: 1310 nm Rx input power: >    min: -31 dBm >    max: -8 dBm Rated for 15 km (9.3 miles) of 9-micron core cable
OC12/STM4 ATM single mode, long reach	OCx/STMx ATM	OC12 STM4 I/O LONG HAUL	1	SC full duplex	Tx power: >    min: -5.0 dBm >    max: 0 dBm Center wavelength: 1310 nm Rx input power: >    min: -34 dBm >    max: -7 dBm Fiber type: 9 micron core Rated for 40 km (24.8 miles) of 9-micron core cable
OC12/STM4 POS multimode without SONET APS redundancy	OCx/STMx POS	OC12 STM4 I/O MULTI MODE	1	SC full duplex	Tx power: >    min: -19 dBm >    max: -14 dBm Center wavelength: 1310 nm Rx input power: >    min: -30 dBm >    max: -14 dBm Rated for 2 km (1.2 miles) over 62.5-micron core cable with an optical loss of 0-9 dB or 50-micron core cable with an optical loss of 7 dB
OC12/STM4 POS multimode with SONET APS redundancy	OCx/STMx POS	OC12 STM4 APS MULTI MODE	1 active 1 redundant	SC full duplex	Tx power: >    min: -19 dBm >    max: -14 dBm Center wavelength: 1310 nm Rx input power: >    min: -30 dBm >    max: -14 dBm Rated for 2 km (1.2 miles) over 62.5-micron core cable with an optical loss of 0-9 dB or 50-micron core cable with an optical loss of 7 dB
OC12/STM4 POS single mode, intermediate reach without SONET APS redundancy	OCx/STMx POS	OC12 STM4 I/O SINGLE MODE	1	SC full duplex	Tx power: >    min: -15 dBm >    max: -8 dBm Center wavelength: 1310 nm Rx input power: >    min: -31 dBm >    max: -8 dBm Rated for 15 km (9.3 miles) of 9-micron core cable
OC12/STM4 POS single mode, intermediate reach with SONET APS redundancy	OCx/STMx POS	OC12 STM4 APS SINGLE MODE	1 active 1 redundant	SC full duplex	Tx power: >    min: -15 dBm >    max: -8 dBm Center wavelength: 1310 nm Rx input power: >    min: -31 dBm >    max: -8 dBm Rated for 15 km (9.3 miles) of 9-micron core cable
OC12/STM4 POS single mode, long reach	OCx/STMx POS	OC12 STM4 I/O LONG HAUL	1	SC full duplex	Tx power: >    min: -5.0 dBm >    max: 0 dBm Center wavelength: 1310 nm Rx input power: >    min: -34 dBm >    max: -7 dBm Rated for 40 km (24.8 miles) of 9-micron core cable
SRP (5 Gbps)b	SRP-5G	SRP I/O	7	Terminal blocks BNC Wire wrap posts RJ-45 RS-232 (DB-9)	See Chapter 4, Cabling the ERX System.
SRP (5 Gbps)	SRP-5G+	SRP I/O	7	Terminal blocks BNC Wire wrap posts RJ-45 RS-232 (DB-9)	See Chapter 4, Cabling the ERX System.
SRP (10 Gbps)	SRP-10G	SRP I/O	7	Terminal blocks BNC 75 ohm Wire wrap posts RJ-45 RS-232 (DB-9)	See Chapter 4, Cabling the ERX System.
SRP (40 Gbps)b	SRP-40G	SRP I/O	7	Terminal blocks BNC 75 ohm Wire wrap posts RJ-45 RS-232 (DB-9)	See Chapter 4, Cabling the ERX System.
SRP (40 Gbps)	SRP-40G+	SRP I/O	7	Terminal blocks BNC 75 ohm Wire wrap posts RJ-45 RS-232 (DB-9)	See Chapter 4, Cabling the ERX System.
T3 ATM (3 ports)	T3 ATM	CT3/T3 I/O	3	BNC 75 ohm	The line interface unit supports two line build-outs: >    0-68.5 m (0-225 feet) >    69-137 m (226-450 feet) Signal strength is software controlled. The transmitted signal complies with ANSI T1.102-1993: Digital Hierarchy - Electrical Interfaces (1999) for cable lengths up to 201 m (660 feet).
T3 FRAME (3 ports)	T3 FRAME	CT3/T3 I/O	3	BNC 75 ohm	The line interface unit supports two line build-outs: >    0-68.5 m (0-225 feet) >    69-137 m (226-450 feet) Signal strength is software controlled. The transmitted signal complies with ANSI T1.102-1993: Digital Hierarchy - Electrical Interfaces (1999) for cable lengths up to 201 m (660 feet).
T3 FRAME (12 ports)	COCX-F3	CT3/T3 12 I/O	12	BT43 SMB (cable that adapts to 75-ohm BNC is available)	The line interface unit supports two line build-outs: >    0-68.5 m (0-225 feet) >    69-137 m (226-450 feet) Signal strength is software controlled. The transmitted signal complies with ANSI T1.102-1993: Digital Hierarchy - Electrical Interfaces (1999) for cable lengths up to 201 m (660 feet).
TSM	TUNNEL SERVICE	No I/O module	N/A	N/A	N/A
X.21/V.35	X.21/V.35	X.21/V.35 I/O	16	200-pin proprietary socket on I/O module DB15 X.21 or DB34 V.35 at remote end	See Table B-4.

Cable Lengths for X.21/V.35 Cables

Serial signals can travel a limited distance without significant degradation. Slower serial signals can travel farther without degradation than faster serial signals. Table B-4 shows the maximum cable lengths you can use to prevent signal degradation at various transmission speeds.

Table B-4 Maximum cable lengths for X.21/V.35 connections 

Transmission Speed (Hz)	Cable Length (Feet)	Cable Length (m)
2400	4,100	1,250
4800	2,050	625
9600	1,025	312
19200	513	156
38400	256	78
56000	102	31
2048000	25	8