Reference Guide
IMACS System Release 5.1.9
7-47
WAN Card
WAN Card Specifications
Alarm Indication
As per Bellcore TR-TSY-000191
SLIP Limit
Software Selectable: 126 bits or 138 bits
Equalization
Software Selectable: Adjustable line build out (LBO) settings for 133,
266, 399, 533, 655 ft, csu (CSU option provides connection to
equipment side of co-located external CSU)
Power Levels
Complies with ANSI T1.403 and ITU-T G.703
Output Jitter
Complies with ITU-T G.824
Input Jitter and Wander
Complies with ITU-T G.824
CSU Interface
Bit Rate and Tolerance
1.544 Mbps + 32 ppm
No. of T1 WAN Links per module
1
Max. No. per WAN card
2
Electrical Interface
Per ANSI T1.102/T1.403, DSX-1 100
1/2
balanced
Transmission Range
Software Selectable - 0 dB, 7.5 dB, 15 dB
3000 feet to 6000 feet with 40 dB cable loss (@ 5000 ft. or 1500 m)
Actual range depends on cable characteristics although software
selectable ranges of 0 dB, 7.5 dB and 15 dB are provided. (0 - allows
connection to the network side of a co-located external CSU over a
short-distance, four-wire cable)
Line Coding
Software Selectable AMI or B8ZS
Frame Format
Software Selectable - D4, ESF, SLC96, Subscriber Loop Carrier D4
D4 Framing
Normal Superframe
ESF Framing
Extended Superframe
Subscriber Loop Carrier 96
As per TR-TSY-000008 Mode 1
Supports logical shelf A, logical shelf B or logical shelf group AB only
Supports POTS, CLASS services, CENTREX services, Loop and
Ground Start FXS and FX trunks and DID circuits
Does not support Multi-Party or Coin Phone lines
Subscriber Loop Carrier D4
Supports SP/UVG signaling
Supports shelf group B only
Voice Channel Signaling
AT&T PUB 43801, AT&T 62411, ITU-T Q.421, Q.422 using
Robbed-bit method
Error Detection
Frame Format
Error Scheme
ESF
CRC-6, Controlled Slip, Out of Frame
D4, SLC96, SLCD4
BiPolar Violation, Controlled Slip, Out of Frame
Alarm Indication
As per Bellcore TR-TSY-000191
SLIP Limit
Software Selectable: 126 bits or 138 bits
Equalization
Software Selectable with settings for 0, 7.5 or 15.0 dB
Power Levels
Complies with ANSI T1.403 and ITU-T G.703
Output Jitter
Complies with ITU-T G.824
Input Jitter and Wander
Complies with ITU-T G.824
